Java SSL：如何禁用主机名验证_Java_Ssl_Ssl Certificate_Hostname

Java SSL：如何禁用主机名验证

java ssl

Java SSL：如何禁用主机名验证,java,ssl,ssl-certificate,hostname,Java,Ssl,Ssl Certificate,Hostname,标准java SSL套接字是否有办法禁用具有属性的SSL连接的主机名验证？到目前为止，我找到的唯一方法是编写一个主机名验证程序，它始终返回true Weblogic提供了这种可能性，可以使用以下属性禁用主机名验证： -Dweblogic.security.SSL.ignoreHostnameVerify标准JavaSSL套接字或SSL中没有主机名验证，因此无法将其设置为该级别。主机名验证是HTTPS（RFC 2818）的一部分：这就是为什么它显示为javax.net.ssl.HostnameVe

标准java SSL套接字是否有办法禁用具有属性的SSL连接的主机名验证？到目前为止，我找到的唯一方法是编写一个主机名验证程序，它始终返回true

Weblogic提供了这种可能性，可以使用以下属性禁用主机名验证：

-Dweblogic.security.SSL.ignoreHostnameVerify

标准JavaSSL套接字或SSL中没有主机名验证，因此无法将其设置为该级别。主机名验证是HTTPS（RFC 2818）的一部分：这就是为什么它显示为javax.net.ssl.HostnameVerifier，应用于HttpsURLConnection。

应该可以创建覆盖默认主机名验证程序的自定义设置：

import javax.net.ssl.*;
import java.lang.instrument.Instrumentation;

public class LenientHostnameVerifierAgent {
    public static void premain(String args, Instrumentation inst) {
        HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier() {
            public boolean verify(String s, SSLSession sslSession) {
                return true;
            }
        });
    }
}

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.Socket;
import java.net.URL;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.X509Certificate;

import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLEngine;
import javax.net.ssl.SSLHandshakeException;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509ExtendedTrustManager;

public class Test {

   public static void main (String [] args) throws IOException {
      // This URL has a certificate with a wrong name
      URL url = new URL ("https://wrong.host.badssl.com/");

      try {
         // opening a connection will fail
         url.openConnection ().connect ();
      } catch (SSLHandshakeException e) {
         System.out.println ("Couldn't open connection: " + e.getMessage ());
      }

      // Bypassing the SSL verification to execute our code successfully
      disableSSLVerification ();

      // now we can open the connection
      url.openConnection ().connect ();

      System.out.println ("successfully opened connection to " + url + ": " + ((HttpURLConnection) url.openConnection ()).getResponseCode ());
   }

   // Method used for bypassing SSL verification
   public static void disableSSLVerification () {

      TrustManager [] trustAllCerts = new TrustManager [] {new X509ExtendedTrustManager () {
         @Override
         public void checkClientTrusted (X509Certificate [] chain, String authType, Socket socket) {

         }

         @Override
         public void checkServerTrusted (X509Certificate [] chain, String authType, Socket socket) {

         }

         @Override
         public void checkClientTrusted (X509Certificate [] chain, String authType, SSLEngine engine) {

         }

         @Override
         public void checkServerTrusted (X509Certificate [] chain, String authType, SSLEngine engine) {

         }

         @Override
         public java.security.cert.X509Certificate [] getAcceptedIssuers () {
            return null;
         }

         @Override
         public void checkClientTrusted (X509Certificate [] certs, String authType) {
         }

         @Override
         public void checkServerTrusted (X509Certificate [] certs, String authType) {
         }

      }};

      SSLContext sc = null;
      try {
         sc = SSLContext.getInstance ("SSL");
         sc.init (null, trustAllCerts, new java.security.SecureRandom ());
      } catch (KeyManagementException | NoSuchAlgorithmException e) {
         e.printStackTrace ();
      }
      HttpsURLConnection.setDefaultSSLSocketFactory (sc.getSocketFactory ());
   }
}

然后只需将

-javaagent:LenientHostnameVerifierAgent.jar

添加到程序的java启动参数中。

在访问RESTful web服务时，我也遇到了同样的问题。我用下面的代码来解决这个问题：

public class Test {
    //Bypassing the SSL verification to execute our code successfully 
    static {
        disableSSLVerification();
    }

    public static void main(String[] args) {    
        //Access HTTPS URL and do something    
    }
    //Method used for bypassing SSL verification
    public static void disableSSLVerification() {

        TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
            public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                return null;
            }

            public void checkClientTrusted(X509Certificate[] certs, String authType) {
            }

            public void checkServerTrusted(X509Certificate[] certs, String authType) {
            }

        } };

        SSLContext sc = null;
        try {
            sc = SSLContext.getInstance("SSL");
            sc.init(null, trustAllCerts, new java.security.SecureRandom());
        } catch (KeyManagementException e) {
            e.printStackTrace();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        }
        HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());

        HostnameVerifier allHostsValid = new HostnameVerifier() {
            public boolean verify(String hostname, SSLSession session) {
                return true;
            }
        };      
        HttpsURLConnection.setDefaultHostnameVerifier(allHostsValid);           
    }
}

这对我有用。试试看

如果您正在使用apache的http客户端4：

SSLConnectionSocketFactory sslConnectionSocketFactory = 
    new SSLConnectionSocketFactory(sslContext,
             new String[] { "TLSv1.2" }, null, new HostnameVerifier() {
                    public boolean verify(String arg0, SSLSession arg1) {
                            return true;
            }
      });

来自@Nani的答案不再适用于Java1.8u181。您仍然需要使用自己的TrustManager，但它需要是

X509ExtendedTrustManager

而不是

X509TrustManager

：

import javax.net.ssl.*;
import java.lang.instrument.Instrumentation;

public class LenientHostnameVerifierAgent {
    public static void premain(String args, Instrumentation inst) {
        HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier() {
            public boolean verify(String s, SSLSession sslSession) {
                return true;
            }
        });
    }
}

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.Socket;
import java.net.URL;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.X509Certificate;

import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLEngine;
import javax.net.ssl.SSLHandshakeException;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509ExtendedTrustManager;

public class Test {

   public static void main (String [] args) throws IOException {
      // This URL has a certificate with a wrong name
      URL url = new URL ("https://wrong.host.badssl.com/");

      try {
         // opening a connection will fail
         url.openConnection ().connect ();
      } catch (SSLHandshakeException e) {
         System.out.println ("Couldn't open connection: " + e.getMessage ());
      }

      // Bypassing the SSL verification to execute our code successfully
      disableSSLVerification ();

      // now we can open the connection
      url.openConnection ().connect ();

      System.out.println ("successfully opened connection to " + url + ": " + ((HttpURLConnection) url.openConnection ()).getResponseCode ());
   }

   // Method used for bypassing SSL verification
   public static void disableSSLVerification () {

      TrustManager [] trustAllCerts = new TrustManager [] {new X509ExtendedTrustManager () {
         @Override
         public void checkClientTrusted (X509Certificate [] chain, String authType, Socket socket) {

         }

         @Override
         public void checkServerTrusted (X509Certificate [] chain, String authType, Socket socket) {

         }

         @Override
         public void checkClientTrusted (X509Certificate [] chain, String authType, SSLEngine engine) {

         }

         @Override
         public void checkServerTrusted (X509Certificate [] chain, String authType, SSLEngine engine) {

         }

         @Override
         public java.security.cert.X509Certificate [] getAcceptedIssuers () {
            return null;
         }

         @Override
         public void checkClientTrusted (X509Certificate [] certs, String authType) {
         }

         @Override
         public void checkServerTrusted (X509Certificate [] certs, String authType) {
         }

      }};

      SSLContext sc = null;
      try {
         sc = SSLContext.getInstance ("SSL");
         sc.init (null, trustAllCerts, new java.security.SecureRandom ());
      } catch (KeyManagementException | NoSuchAlgorithmException e) {
         e.printStackTrace ();
      }
      HttpsURLConnection.setDefaultSSLSocketFactory (sc.getSocketFactory ());
   }
}

嗯，你的解决方案几乎是我能想到的最干净的解决方案；它有什么问题吗？嗯，您只想禁用检查，并且在不更改代码的情况下执行此操作。通常，您有很多属性来控制ssl连接，但显然不是在这种情况下……好吧，您可以创建一个主机名验证器工厂，该工厂将检查您的自定义属性，并返回“始终正常”的虚拟验证器（如果已设置），或者返回默认验证器（如果未设置）；然而，这并不能真正解决问题，不是吗？你是对的，这并不能解决我的问题。事实上，我并没有直接使用套接字，而是wls webservice框架，在这里，当涉及套接字工厂配置时，尤其是设置我自己的主机名验证器时，我似乎不在驾驶座上。不过，这听起来很合理，为什么weblogic提供这样一个开关，为什么HttpsURLConnection级别上没有这样的属性？@lewap我想这些问题都是修辞性的？我无法回答有关WebLogic的问题，也无法回答关于JDK为何如此的问题。WebLogic在我看来像是一个安全漏洞，我不希望它出现在JDK中。它们根本不是修辞性的，我试图理解ssl是如何工作的，并理解JDK和WebLogic之间的区别。也许这是有原因的。@lewap当然有原因。这可能是一个很好的处理方法，但我正在处理Apache的http客户端。如何创建javaagent来设置

SSLSocketFactory.setHostnameVerifier（新的AllowAllHostnameVerifier（））

？@end-user，与此答案中的方法相同。这不安全地信任所有证书，但不会绕过主机名验证，所以它没有回答这个问题。它仍然需要添加一个启动参数吗？当你使用我发布的解决方案时，你不需要任何额外的启动参数。您只需要确保在程序中设置了套接字工厂。